Re: going to shoot in Czech Rep: can I just switch bulbs to 220 V?
 

There is a famous and superb restaurant halfway up the hill on the opposite side of the river to the castle, I can't remember it's name but it is in a park and you go up the side of the hill on a cable car to get to it.

Re: going to shoot in Czech Rep: can I just switch bulbs to 220 V?
 

P.S here is the trivia you need from IMDB to find the restaurant in I served the king of england:

The scenes for the Hotel Pariz restaurant were filmed in the main restaurant in Prague's Obecni Dum (Civic House), just around the corner from the actual Hotel Pariz. Both restaurants were designed in the Art Nouveau style by artist Alphons Mucha, but the Obecni Dum restaurant is larger.

Don't think this is the restaurant up the hill but at least you have the info to find it now.

Re: going to shoot in Czech Rep: can I just switch bulbs to 220 V?
 

Thanks for this, Gary. I will sample a Radegast (someone told me today this is a great beer) in the Obecni Dum, and then maybe an espresso in the Hotel Pariz. The U-Flek is also on my list now.
Rifa light (with bulb firmly embedded) is working well.
Regards,
Malcolm